San Clemente in september: average Weather, Temperature and Climate
Weather in San Clemente in september 2025
The weather in San Clemente in september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
perfect weather UV index: 7
Weather at 6am
72°F
Clear/Sunny
71% of time
13%
8%
7%
Weather at 12pm
79°F
Clear/Sunny
84% of time
9%
6%
2%
Weather at 6pm
72°F
Clear/Sunny
74% of time
17%
7%
3%
Weather at 3am
68°F
75%
17%
5%
3%
Evolution of daily average temperature and precipitation in San Clemente in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in San Clemente in september.
The climate of San Clemente in september is perfect
In september in San Clemente, the climate is dry ; it never rains.
The climate quite nice there this month. The thermometer averaged maximum of 81°F. In the morning the temperature drops to 72°F. Thus, the mean temperature average in september in San Clemente is 76°F. Note that seasonal normals in contrast with those observed in San Clemente in the month of september with a maximum record of 97°F in 2010 and a minimum record of 61°F in 2010. You You can hope to have about 4 days with temperatures up to 86°F, or 13 of the month.
In september in San Clemente, the days on average last 12:22. Sunrise is at 05:34 and sunset is at 17:56.
With a perfect climate, september is recommended to go in San Clemente in California.
Seasonal average climate and temperature of San Clemente in september
Check below seasonal norms These datas are set from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 76°F | ||||
| Highest temperature | 81°F | ||||
| Lowest temperature | 72°F | ||||
| Highest record temperature | 97°F (2010) | ||||
| Lowest record temperature | 61°F (2010) | ||||
| Number of days at +86°F | 4 day(s) (13%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 68°F | ||||
| Lowest sea temperature | 65°F | ||||
| Highest sea temperature | 70°F | ||||
| Wind | |||||
| Wind speed | 16km/h | ||||
| Wind temperature | 72°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 0.5in | ||||
| Number of days with rainfall | 1 day(s) (2%) | ||||
| Record daily rainfall | 0.5in (2014) | ||||
| Other climate data | |||||
| Humidity | 70% | ||||
| Visibility | 9.86km | ||||
| Cloud cover | 11% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:34 | ||||
| Time of sunset | 17:56 | ||||
| Length of day | 12:22 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last september?
Here is the day by day recorded weather in San Clemente in september 2024:
68°F to 74°F
68°F to 76°F
70°F to 77°F
72°F to 79°F
74°F to 81°F
74°F to 83°F
74°F to 85°F
77°F to 83°F
76°F to 81°F
72°F to 76°F
65°F to 68°F
65°F to 70°F
65°F to 70°F
65°F to 70°F
63°F to 68°F
65°F to 67°F
61°F to 65°F
61°F to 67°F
61°F to 67°F
61°F to 65°F
59°F to 67°F
63°F to 70°F
63°F to 70°F
61°F to 68°F
61°F to 70°F
61°F to 67°F
59°F to 67°F
59°F to 68°F
61°F to 68°F
61°F to 68°F
Map: other cities in California in september
Cities near San Clemente:
| Oceanside in september | perfect weather |
| Newport Beach in september | perfect weather |
| Carlsbad in september | perfect weather |
| Temecula in september | perfect weather |
| Huntington Beach in september | perfect weather |
| Encinitas in september | perfect weather |
| Cleveland National Forest in september | perfect weather |
| San Bernardino in september | perfect weather |
| San Diego in september | perfect weather |
| Manhattan Beach in september | perfect weather |
| Los Angeles in september | perfect weather |
| Hollywood in september | perfect weather |
Click over cities on the map for information about the weather in september.
San Clemente
perfect weather
good
tolerable
bad
very bad
Weather data for San Clemente in september:
Weather data for San Clemente for september are derived from an average of the weather forecast since 2009 in San Clemente. There is a margin of error and these forecasts are to be considered as general information only. The weather in San Clemente can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to San Clemente.